Sasi Math (Revised for 1024)

Scroll:Percentage >> Percentage >> saq (2889)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.

A calculator cost 15% less in the school bookshop than in the school bookstore. Given that the price difference is 720 cents, calculate the cost of the calculator in the school bookshop. (Place your answer in dollars.)

$ ___

Answer:_______________

A calculator costs 20% less in the school bookshop than in the estate bookstore. Given that the price difference is 620 cents, calculate the cost of the calculator in the school bookshop. (Place your answer in dollars.)

$ ___

Answer:_______________

Mr Lim was informed that he would be receiving a 30% cut in his salary due to the recession. Given that the deduction amounts to $660, how much was his old salary

$ ___

Answer:_______________

Mr Lim was informed that he would be receiving a 25% cut in his salary due to the recession. Given that the deduction amount to $575, how much was his old salary

$ ___

Answer:_______________

A calculator cost 15% less in the school bookshop than in the school bookstore. Given that the price difference is 585 cents, calculate the cost of the calculator in the school bookshop. (Place your answer in dollars.)

$ ___

Answer:_______________

A calculator costs 20% less in the school bookshop than in the estate bookstore. Given that the price difference is 440 cents, calculate the cost of the calculator in the school bookshop. (Place your answer in dollars.)

$ ___

Answer:_______________

Mr Lim was informed that he would be receiving a 30% cut in his salary due to the recession. Given that the deduction amounts to $900, how much was his old salary

$ ___

Answer:_______________

Mr Lim was informed that he would be receiving a 25% cut in his salary due to the recession. Given that the deduction amount to $850, how much was his old salary

$ ___

Answer:_______________

A calculator cost 15% less in the school bookshop than in the school bookstore. Given that the price difference is 330 cents, calculate the cost of the calculator in the school bookshop. (Place your answer in dollars.)

$ ___

Answer:_______________

10)

A calculator costs 20% less in the school bookshop than in the estate bookstore. Given that the price difference is 640 cents, calculate the cost of the calculator in the school bookshop. (Place your answer in dollars.)

$ ___

Answer:_______________

Answer: $40.80

SOLUTION 1 :

Step 1:	15%	→ 720¢	(difference)
	1%	→ $\frac{720¢}{15%}$
Step 2:	85%	→ $\frac{720¢}{15%}$ x $\frac{85%}{1}$	(pricing of calculator from school bookshop)
		= 4080¢
		$\frac{4080¢}{100}$	(change to $)
		= $40.80

Answer: $24.80

SOLUTION 1 :

Step 1:	20%	→ 620¢	(difference)
	1%	→ $\frac{620¢}{20%}$
Step 2:	80%	→ $\frac{620¢}{20%}$ x $\frac{80%}{1}$	(pricing of calculator from school bookshop)
		= 2480¢
		$\frac{2480¢}{100}$	(change to $)
		= $24.80

Mr Lim was informed that he would be receiving a 30% cut in his salary due to the recession. Given that the deduction amounts to $660, how much was his old salary

Answer: $2200

SOLUTION 1 :

Step 1:	30%	→ $660	(deducted amount)
	1%	→ $\frac{$660}{30%}$
Step 2:	100%	→ $\frac{$660}{70%}$ x $\frac{100%}{1}$	(old salary)
		= $2200

Mr Lim was informed that he would be receiving a 25% cut in his salary due to the recession. Given that the deduction amount to $575, how much was his old salary

Answer: $2300

SOLUTION 1 :

Step 1:	25%	→ $575	(deducted amount)
	1%	→ $\frac{$575}{25%}$
Step 2:	100%	→ $\frac{$575}{25%}$ x $\frac{100%}{1}$	(old salary)
		= $2300

Answer: $33.15

SOLUTION 1 :

Step 1:	15%	→ 585¢	(difference)
	1%	→ $\frac{585¢}{15%}$
Step 2:	85%	→ $\frac{585¢}{15%}$ x $\frac{85%}{1}$	(pricing of calculator from school bookshop)
		= 3315¢
		$\frac{3315¢}{100}$	(change to $)
		= $33.15

Answer: $17.60

SOLUTION 1 :

Step 1:	20%	→ 440¢	(difference)
	1%	→ $\frac{440¢}{20%}$
Step 2:	80%	→ $\frac{440¢}{20%}$ x $\frac{80%}{1}$	(pricing of calculator from school bookshop)
		= 1760¢
		$\frac{1760¢}{100}$	(change to $)
		= $17.60

Mr Lim was informed that he would be receiving a 30% cut in his salary due to the recession. Given that the deduction amounts to $900, how much was his old salary

Answer: $3000

SOLUTION 1 :

Step 1:	30%	→ $900	(deducted amount)
	1%	→ $\frac{$900}{30%}$
Step 2:	100%	→ $\frac{$900}{70%}$ x $\frac{100%}{1}$	(old salary)
		= $3000

Mr Lim was informed that he would be receiving a 25% cut in his salary due to the recession. Given that the deduction amount to $850, how much was his old salary

Answer: $3400

SOLUTION 1 :

Step 1:	25%	→ $850	(deducted amount)
	1%	→ $\frac{$850}{25%}$
Step 2:	100%	→ $\frac{$850}{25%}$ x $\frac{100%}{1}$	(old salary)
		= $3400

Answer: $18.70

SOLUTION 1 :

Step 1:	15%	→ 330¢	(difference)
	1%	→ $\frac{330¢}{15%}$
Step 2:	85%	→ $\frac{330¢}{15%}$ x $\frac{85%}{1}$	(pricing of calculator from school bookshop)
		= 1870¢
		$\frac{1870¢}{100}$	(change to $)
		= $18.70

10)

Answer: $25.60

SOLUTION 1 :

Step 1:	20%	→ 640¢	(difference)
	1%	→ $\frac{640¢}{20%}$
Step 2:	80%	→ $\frac{640¢}{20%}$ x $\frac{80%}{1}$	(pricing of calculator from school bookshop)
		= 2560¢
		$\frac{2560¢}{100}$	(change to $)
		= $25.60